For example, Overkill's mana value is 3, because it costs two generic mana and one black mana
But it can still do a lot of work if your gameplan is bottlenecked behind a single high-cost play: perhaps an expensive win-condition commander, or just Ad Nauseam plus counterspell mana
Golgari is good at sacrificing creatures and utilizing its graveyard
If you don't control an Army, create a 0/0 black Orc Army creature token first.) Creature - Warrior Orc Witch-king of Angmar Flying Whenever one or more creatures deal combat damage to you, each opponent sacrifices a creature of their choice that dealt combat damage to you this turn
Cards That Are The Best Of Both Worlds Dual-Ink cards are a feature that TCG players will be used to, with the most obvious parallel being Multi-Color cards in Magic: The Gathering
What do you think about landcycling cards